FKIE_CVE-2025-67873

Vulnerability from fkie_nvd - Published: 2025-12-17 22:16 - Updated: 2026-01-02 18:39
Severity ?
4.8 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue.
References
security-advisories@github.comhttps://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3Patch
security-advisories@github.comhttps://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jgExploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jgExploit, Vendor Advisory
Impacted products
Vendor Product Version
capstone-engine capstone *
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
To clipboard 

{
  "configurations": [
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      "value": "Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue."
    }
  ],
  "id": "CVE-2025-67873",
  "lastModified": "2026-01-02T18:39:54.833",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
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        "type": "Secondary"
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          "confidentialityImpact": "HIGH",
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        "source": "nvd@nist.gov",
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      "tags": [
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}


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